Silent SEX 24 hours when it's not okay to make a sound

"Ichika Kuroki" feels all the time in a situation where she should never make a sound! At the convenience store, at the hospital, in a taxi... The sight of her cumming while suppressing her voice is the most exciting!! If she finds out... she can't handle the excitement! “Persevering might be a good thing...what should I do if I get addicted to it!?” (According to himself)